1 files changed, 0 insertions, 153 deletions
diff --git a/src/pkg/crypto/tls/prf.go b/src/pkg/crypto/tls/prf.go
deleted file mode 100644
index 478cf65f9..000000000
--- a/src/pkg/crypto/tls/prf.go
+++ /dev/null
@@ -1,153 +0,0 @@
-// Copyright 2009 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package tls
-
-import (
-	"crypto/hmac"
-	"crypto/md5"
-	"crypto/sha1"
-	"hash"
-	"os"
-)
-
-// Split a premaster secret in two as specified in RFC 4346, section 5.
-func splitPreMasterSecret(secret []byte) (s1, s2 []byte) {
-	s1 = secret[0 : (len(secret)+1)/2]
-	s2 = secret[len(secret)/2:]
-	return
-}
-
-// pHash implements the P_hash function, as defined in RFC 4346, section 5.
-func pHash(result, secret, seed []byte, hash func() hash.Hash) {
-	h := hmac.New(hash, secret)
-	h.Write(seed)
-	a := h.Sum()
-
-	j := 0
-	for j < len(result) {
-		h.Reset()
-		h.Write(a)
-		h.Write(seed)
-		b := h.Sum()
-		todo := len(b)
-		if j+todo > len(result) {
-			todo = len(result) - j
-		}
-		copy(result[j:j+todo], b)
-		j += todo
-
-		h.Reset()
-		h.Write(a)
-		a = h.Sum()
-	}
-}
-
-// pRF10 implements the TLS 1.0 pseudo-random function, as defined in RFC 2246, section 5.
-func pRF10(result, secret, label, seed []byte) {
-	hashSHA1 := sha1.New
-	hashMD5 := md5.New
-
-	labelAndSeed := make([]byte, len(label)+len(seed))
-	copy(labelAndSeed, label)
-	copy(labelAndSeed[len(label):], seed)
-
-	s1, s2 := splitPreMasterSecret(secret)
-	pHash(result, s1, labelAndSeed, hashMD5)
-	result2 := make([]byte, len(result))
-	pHash(result2, s2, labelAndSeed, hashSHA1)
-
-	for i, b := range result2 {
-		result[i] ^= b
-	}
-}
-
-const (
-	tlsRandomLength      = 32 // Length of a random nonce in TLS 1.1.
-	masterSecretLength   = 48 // Length of a master secret in TLS 1.1.
-	finishedVerifyLength = 12 // Length of verify_data in a Finished message.
-)
-
-var masterSecretLabel = []byte("master secret")
-var keyExpansionLabel = []byte("key expansion")
-var clientFinishedLabel = []byte("client finished")
-var serverFinishedLabel = []byte("server finished")
-
-// keysFromPreMasterSecret generates the connection keys from the pre master
-// secret, given the lengths of the MAC key, cipher key and IV, as defined in
-// RFC 2246, section 6.3.
-func keysFromPreMasterSecret10(preMasterSecret, clientRandom, serverRandom []byte, macLen, keyLen, ivLen int) (masterSecret, clientMAC, serverMAC, clientKey, serverKey, clientIV, serverIV []byte) {
-	var seed [tlsRandomLength * 2]byte
-	copy(seed[0:len(clientRandom)], clientRandom)
-	copy(seed[len(clientRandom):], serverRandom)
-	masterSecret = make([]byte, masterSecretLength)
-	pRF10(masterSecret, preMasterSecret, masterSecretLabel, seed[0:])
-
-	copy(seed[0:len(clientRandom)], serverRandom)
-	copy(seed[len(serverRandom):], clientRandom)
-
-	n := 2*macLen + 2*keyLen + 2*ivLen
-	keyMaterial := make([]byte, n)
-	pRF10(keyMaterial, masterSecret, keyExpansionLabel, seed[0:])
-	clientMAC = keyMaterial[:macLen]
-	keyMaterial = keyMaterial[macLen:]
-	serverMAC = keyMaterial[:macLen]
-	keyMaterial = keyMaterial[macLen:]
-	clientKey = keyMaterial[:keyLen]
-	keyMaterial = keyMaterial[keyLen:]
-	serverKey = keyMaterial[:keyLen]
-	keyMaterial = keyMaterial[keyLen:]
-	clientIV = keyMaterial[:ivLen]
-	keyMaterial = keyMaterial[ivLen:]
-	serverIV = keyMaterial[:ivLen]
-	return
-}
-
-// A finishedHash calculates the hash of a set of handshake messages suitable
-// for including in a Finished message.
-type finishedHash struct {
-	clientMD5  hash.Hash
-	clientSHA1 hash.Hash
-	serverMD5  hash.Hash
-	serverSHA1 hash.Hash
-}
-
-func newFinishedHash() finishedHash {
-	return finishedHash{md5.New(), sha1.New(), md5.New(), sha1.New()}
-}
-
-func (h finishedHash) Write(msg []byte) (n int, err os.Error) {
-	h.clientMD5.Write(msg)
-	h.clientSHA1.Write(msg)
-	h.serverMD5.Write(msg)
-	h.serverSHA1.Write(msg)
-	return len(msg), nil
-}
-
-// finishedSum calculates the contents of the verify_data member of a Finished
-// message given the MD5 and SHA1 hashes of a set of handshake messages.
-func finishedSum(md5, sha1, label, masterSecret []byte) []byte {
-	seed := make([]byte, len(md5)+len(sha1))
-	copy(seed, md5)
-	copy(seed[len(md5):], sha1)
-	out := make([]byte, finishedVerifyLength)
-	pRF10(out, masterSecret, label, seed)
-	return out
-}
-
-// clientSum returns the contents of the verify_data member of a client's
-// Finished message.
-func (h finishedHash) clientSum(masterSecret []byte) []byte {
-	md5 := h.clientMD5.Sum()
-	sha1 := h.clientSHA1.Sum()
-	return finishedSum(md5, sha1, clientFinishedLabel, masterSecret)
-}
-
-// serverSum returns the contents of the verify_data member of a server's
-// Finished message.
-func (h finishedHash) serverSum(masterSecret []byte) []byte {
-	md5 := h.serverMD5.Sum()
-	sha1 := h.serverSHA1.Sum()
-	return finishedSum(md5, sha1, serverFinishedLabel, masterSecret)
-}